Modify active campaign


Hi, seems that we're sending a campaign with a wrong link.

But we already sent to some subscribers the campaign. I understand that I must cancel the active campaign and then resend it with corrected code in a new campaign.

The thing is, how remove ppl that already got the email in the new list ?
I was so silly and I didn't think about this easy option .... LOL.

I had to duplicate list, duplicate campaign, import contacts, delete sent contacts, etc ..... so thanks for this extra-easy help :)